Marking machine



May 2l, 1940. L. ANDI-:RsEN

MARKING MACHINE Filed June 8, 1938 2 Sheets-Sheet 1.

l l d l I ATTORNEY May 21, 1940. .v ANnERsx-:N

MARKING MACHINE Filed June 8, 1938 2 Sheets-Sheet 2 IAA BY m hlm/(xr)ATTORNEY Patented May 21, 1940 PATENT OFFICE MARKING MACHINE LauritsAndersen, Boston, Mass., assignor. to T. J. Edwards, Inc., Boston,Mass., a corporation of Massachusetts 'Application -Jlune 8,r 1938,Serial No. 212,471

1 claim. ,101. 1v1-29s) The present invention relates to machines of thetype in which a properly shaped applying die impresses material onv apreviously positioned piece of work. As disclosed in the Edwards PatentsNo. 1,796,686, March 17, 1931, and No. 2,113,684, April 12, 1938, thematerial impressedV uponl the work maybe ink or cement. -In the machinesdisclosed in these patents, the applying die is mounted on a carrierprovided with an operating'. handle which is manipulated by theoperative to swing the carrier from a position where the die picks upthe material to a position where the die deposits the material upon thework.- These dies have become complicated and, in consequence, it hasbeen dicult heretofore for the operative, usually a girl, to exertsuflicient pressure through the operating handle to impress the dieproperly on the work. It has been proposed heretofore to provide thistype of machine with a treadle operated mechanism, but it provedunsatisfactory and made no impression in the art commercially,principally because itv required the use of one pedal toswing the die toa position where it picked up the material and another pedal to swingthe die to a position where it deposited the picked up material upon thework.

The principal objects of the present invention are to produce a machineof the type referred to in which the die is swung from amaterial-receiving position to a position where it is pressed against apiece of work by treadle operated mechanism having a leverage to exertthe desired pressure between the-die and the 35 work and to provide thetreadle of said mechanism with a pedal convenient for use by leftfooted,right-footed or pedidextrous operatives.

To the accomplishment of these objects, the

features of the present invention consist in cer- 40 tain devices,combinations and arrangement of parts hereinafter described and thenpointed out in detail in the appended claim which possesses advantagesreadily apparent to those 45 skilled in the art.

'I'he various features of the present invention will be readilyunderstood from an inspection of the accompanying drawings illustratingthe best form of the invention at present known to the inventor, inwhich,

Figure l is a view in plan of the machine, herein shown, for purposes ofdisclosure, as an ink-marker;

Fig. 2 is a detail view in sectional elevation on the line 2-2, Fig. 3;

Fig. 3 is a detail View in longitudinal sectional elevation, and I Fig.4 is a detail view in front elevation of the lower portionof the treadleshowing the selected positions in which the pedal may be `oifset 5laterally.

A machine such as is herein illustrated may be utilized for marking anink line on an upper blank for use as a guide line in a subsequentoperation or for applying cement to many different sorts of work pieces.It will be described herein as utilized for applying ink lines to avamp. When the machine is utilized for this particular purpose, it willbe provided with an applying die 5, (Fig. 3), which is mounted on abacking board 6. The backing board 6 is interchangeable with otherscarrying dies having different configurations, or capable of differentuses, and is therefore detachably connected to a cross-head or carrier'I substantially in the man- 20 ner illustrated and described in thepatent toA Woodworth numbered 1,639,360 and dated August 16, 1927.

The carrier 'I is supported at the upper ends of four parallel linkscomprising two forward 25 links 8, (Figs. 1 and 3), and two rear links9. The forward links are mountedon a horizontal shaft I0 journalled inthe frame I I of the machine which at one end supports an ink pad I2,(Fig. 3), and at the other end has a work table 30 I3 upon which thework I4, (Fig. 1), to be marked is supported, it being understood that`a gauge plate is interposed between the table and the work.

The rear links 9 are secured to a horizontal shaft I5, (Figs. 1 and 3),journalled in the frame Il. Secured at the center of 'the shaft I5,(Fig. 3), is a gear I6 which meshes with a rack I1 cast integrally witha casting I8 secured to the front face of a yoke I9. In effect, the yokeI9 and the arms thereof consists the horizontal arm of a bell-cranklever 20 pivoted on a rod 2l, the opposite ends of which are secured tothe frame II. The axis of the shaft I5 and the centerline of the rod 2lare mounteda in the same horizontal plane. The rack I'l is formed on acurve, the center of which lies in the centerline of the rod 2I. Thevertical arm of the bell-crank lever l 20 constitutes a treadle 22having a pedal 23 sure on the die when it is swung into engagement withthe work.

By curving the rack l1 about a center lying in the centerline of the rod2l which in turn is mounted in the same horizontal plane of the shafti5, a smooth easy action is obtained through which the shaft l5 isrotated by the depression of the pedal 23.

In Order to maintain the die 5 normally in engagement with the rubberpad l2, the treadle is connected operatively to the frame Il by a coiledspring 25. When the operative depresses the pedal 23, the die 5 is swungfrom the position where it engages the ink pad l2 to a position where itengages the vamp I4 and deposits ink thereon to form the ink lines 26.When the pedal 23 is released, the spring 25 returns the die to the inkpad.

Experience has demonstratedl that of the operatives of this type ofmachine, some are leftiooted, some are right-footed and some are pedidextrous, the latter shifting from one foot to the other at will torelieve the strain on the legs. In order to accommodate the machine tothese various characteristics, the jointed extremity of the treadle 22is provided with a yoke 27 across the arms of which a pin 2 8 is rigidlymounted. The pedal 23, like a rubber-tread bicycle pedal, is rotatablymounted on a rod 2Q projecting from a head 30 which is pivotally mountedon the pin 28. With this construction, the pedal may be offset to theright or to the left to accommodate right-footed and left-footedoperatives, respectively, the bottom of the yoke 21 serving as a stop tolimit the movement of the pedal in either` direction. Some girls arepedidextrous and appreciate being able to swing the pedal to the rightin position for operation by the right foot and then, when the right legtires, being able to swing the pedal to the left in position foroperation by the left foot.

What is claimed as new, is:

In a machine for depositing material upon a work piece, a frame having asource of material supply at one end, and a work support at the otherend, a material depositing die, a shaft journalled in the frame,.parallel swinging links supporting said die, at least one of the linksbeing secured to the shaft, a gear on the shaft, and means for rotatingthe shaft to swing the die from a position above the source of materialsupply to a position where the die contacts with a work piece on thesupport comprising al lever of the first order, pivoted from the frame,one arm of the lever having a curved rack engaged with the gear, theaxes of the shaft and the lever lying in the same horizontal plane, thecenter of curvature of the rack lying ln the axis of the lever.

LAURITS ANDERSEN.

